<?php
/**
 * Zend Framework
 * LICENSE
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 * @category Zend
 * @package Zend_Config
 * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd New BSD License
 * @version $Id: Json.php 23293 2010-11-04 23:40:23Z ramon $
 */
/**
 *
 * @see Zend_Config_Writer
 */
require_once 'Zend/Config/Writer/FileAbstract.php';
/**
 *
 * @see Zend_Config_Json
 */
require_once 'Zend/Config/Json.php';

/**
 *
 * @category Zend
 * @package Zend_Config
 * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd New BSD License
 */
class Zend_Config_Writer_Json extends Zend_Config_Writer_FileAbstract {

    /**
     * If we need to pretty-print JSON data
     * @var boolean
     */
    protected $_prettyPrint = false;

    /**
     * Get prettyPrint flag
     * @return the prettyPrint flag
     */
    public function prettyPrint () {
        return $this -> _prettyPrint;
    }

    /**
     * Set prettyPrint flag
     * @param bool $prettyPrint PrettyPrint flag
     * @return Zend_Config_Writer_Json
     */
    public function setPrettyPrint ($flag) {
        $this -> _prettyPrint = (bool) $flag;
        return $this;
    }

    /**
     * Render a Zend_Config into a JSON config string.
     * @since 1.10
     * @return string
     */
    public function render () {
        $data = $this -> _config -> toArray ();
        $sectionName = $this -> _config -> getSectionName ();
        $extends = $this -> _config -> getExtends ();
        if (is_string ($sectionName)) {
            $data = array($sectionName => $data);
        }
        foreach ($extends as $section => $parentSection) {
            $data[$section][Zend_Config_Json::EXTENDS_NAME] = $parentSection;
        }
        // Ensure that each "extends" section actually exists
        foreach ($data as $section => $sectionData) {
            if (is_array ($sectionData) && isset ($sectionData[Zend_Config_Json::EXTENDS_NAME])) {
                $sectionExtends = $sectionData[Zend_Config_Json::EXTENDS_NAME];
                if ( ! isset ($data[$sectionExtends])) {
                    // Remove "extends" declaration if section does not exist
                    unset ($data[$section][Zend_Config_Json::EXTENDS_NAME]);
                }
            }
        }
        $out = Zend_Json::encode ($data);
        if ($this -> prettyPrint ()) {
            $out = Zend_Json::prettyPrint ($out);
        }
        return $out;
    }

}
